Home / 141,437.12-195,183.92-77,779.04

Finding the Fourth Proportional to 141,437.12, 195,183.92 and 77,779.04

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Solution

The fourth proportional to 141,437.12, 195,183.92 and 77,779.04 is: 107,335.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,437.12 : 195,183.92 = 77,779.04 : x
  2. Step 2: Convert to fraction form
    141,437.12/195,183.92 = 77,779.04/x
  3. Step 3: Cross multiply
    141,437.12x = 195,183.92 × 77,779.04
  4. Step 4: Simplify right side
    141,437.12x = 15,181,217,921.04
  5. Step 5: Solve for x
    x = 15,181,217,921.04/141,437.12
  6. Step 6: Final answer
    x = 107,335.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.